Training Model

[Michelle]

I am a new user of bioclimatic models. I've seen many literature
talking about "training models". Is there anyone could tell me what
are training models and what are they for. The question is basic and
I do want to figure it out.

[B. Miller]

From New Scientist FYI


Climate 'diagnosis' is stark message for politicians

* 13:07 25 November 2009 by *Jessica Hamzelou*
<http://www.newscientist.com/search?rbauthors=Jessica+Hamzelou>
* For similar stories, visit the *Climate Change*
<http://www.newscientist.com/topic/climate-change> Topic Guide

It may sound like a thriller, but /The Copenhagen Diagnosis/
<http://www.copenhagendiagnosis.org/> is not an enjoyable read. It's a
stark update on the state of our environment in time for next month's
summit on climate change <http://en.cop15.dk/> in the Danish capital.

In the report, an international team of climate scientists warns
policy-makers that levels of carbon dioxide in the atmosphere are at the
extreme end of predictions made only in 2007, and that natural CO_2
sinks such as oceans are becoming saturated
<http://www.newscientist.com/article/dn11876-southern-ocean-already-losing-ability-to-absorb-co2.html>.

Also, sea level rise is almost 80 per cent higher than some predictions,
says co-author Tim Lenton at the University of East Anglia in Norwich, UK.

The team stresses that even a little warming could cause irreversible
melting of ice sheets and turn dense Amazon forests into dry savannah
grassland
<http://www.newscientist.com/article/dn16708-parts-of-amazon-close-to-tipping-point.html>.
"We may be heading towards these climate 'tipping points' earlier than
we thought," Lenton says. The report calls for drastic action, including
cutting CO_2 emissions to almost zero by 2100 to prevent catastrophic
climate change.


--
Bruce W. Miller, Ph.D.
Conservation Ecologist
Neotropical Bat Project


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